A method for quickly installing the portal wedge block of the enclosure system based on a pressing tooling

Abstract

The present invention relates to a method for quickly installing a portal wedge block of an enclosure system based on a pressing tooling. The method includes: inserting the main rod of the pressing tooling into the threaded hole in the middle of the metal panel of the portal wedge block until the enlarged structure at the end of the main rod is in close contact with the metal panel; placing the two reverse-acting ends of the pressing tooling on the reverse side of the metal pressing plate; holding the pressing tooling steadily and rotating the handle clockwise. When the metal panel compresses the spring and its surface is level with the adjacent secondary box, install a locking piece in the bolt hole of the portal wedge block, then insert the bolt and tighten it. Remove the pressing tooling, check the flatness of the metal panel of the portal wedge block and the adjacent secondary box, adjust the compression of the spring by adjusting the bolt to make the metal panel flush with the secondary box, and then spot-weld the bolt and the locking piece. This method solves the problem of balanced compression of the spring in the portal wedge block, not only reducing the installation difficulty of the portal wedge block of the SUPER+ type enclosure system, but also greatly improving the installation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of shipbuilding, and particularly to a method for quickly installing a portal wedge of a SUPER+ type insulation system based on a pressing tooling. Background Art

[0002] The Super+ type insulation system is an insulation system with a lower evaporation rate compared to traditional insulation systems. Based on the traditional insulation system, in order to reduce the daily evaporation rate of LNG ships, multiple modifications need to be made on the design basis, including the modification of the position of the portal wedge. Compared with the installation of the portal wedge in the traditional insulation system, the installation of the portal wedge in the SUPER+ type insulation system is extremely difficult because the presence of strong springs makes the compression of the portal wedge much more difficult than the traditional installation method. For a large LNG ship with a capacity of 174,000 cubic meters, there are nearly 30,000 portal wedges throughout the ship. Therefore, how to quickly install the portal wedges is an issue that has to be solved during the construction of LNG ships. Summary of the Invention

[0003] To solve the technical problems existing in the prior art, the present invention provides a method for quickly installing a portal wedge of an insulation system based on a pressing tooling, which solves the problem of the need for a large number of portal wedge installations in actual ships.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A method for quickly installing a portal wedge of an insulation system based on a pressing tooling, the pressing tooling includes a handle, a main rod, a holding end, a movable end, a strengthening cross beam, and a reverse acting end connected in sequence from top to bottom. A larger member is provided at a position near the lower end of the main rod. The portal wedge is composed of a metal panel, two springs, and a wooden member connected in sequence from top to bottom. Threaded holes and two bolt holes are provided on the metal panel. The threaded hole is located in the middle of the metal panel, and the two bolt holes are respectively located on both sides of the threaded hole. The method includes the following steps:

[0006] Step 1: Assemble the portal wedge in place. Hold the holding end of the pressing tooling and vertically insert the main rod into the threaded hole in the middle of the metal panel of the portal wedge until the larger member on the main rod is in close contact with the metal panel.

[0007] Step 2: Spread the reverse acting end and place the two hooks of the reverse acting end on both sides of the portal wedge. Rotate the handle clockwise until the metal panel is in close contact with the wooden member.

[0008] Step 3: Place a locking piece in the bolt hole on the metal panel and screw in the bolt.

[0009] Step 4: Remove the pressing tooling, adjust the bolts to change the compression of the spring so that the metal panel is flush with the adjacent secondary box, and check the flatness of the metal panel of the portal wedge and the adjacent secondary box.

[0010] Step 5: Fix the bolts and locking washers.

[0011] As a preferred technical solution, before installing the portal wedge and after the installation of the adjacent secondary box is completed, a locking plate and a pressing plate are first fixedly installed at the installation position of the portal wedge, and the size of the wooden part in the portal wedge matches that of the pressing plate.

[0012] As a preferred technical solution, in the pressing tooling, the main rod is a threaded rod, the handle is horizontally fixed at the upper end of the main rod, a screw hole is provided at the center of the holding end, a thread matching the main rod is provided in the screw hole, a through hole is provided on the strengthening cross beam, and the main rod passes through the screw hole and the through hole.

[0013] As a preferred technical solution, the thread diameter of the main rod is smaller than the diameter of the threaded hole in the middle of the metal panel of the portal wedge, and the diameter of the enlarged member is larger than the diameter of the threaded hole in the middle of the metal panel of the portal wedge.

[0014] As a preferred technical solution, the enlarged member is arranged on the main rod at a position 8 - 12 mm away from the lower end of the main rod, and the enlarged member is located below the strengthening cross beam.

[0015] As a preferred technical solution, the central axes of the two springs respectively coincide with the central axes of the two bolt holes on the metal panel, and the inner diameter of the spring is larger than the diameter of the bolt hole.

[0016] As a preferred technical solution, the maximum extendable distance of the movable end is greater than the compression of the spring.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The method for quickly installing the portal wedge of the SUPER+ type enclosure system based on the pressing tooling of the present invention solves the problem of balanced compression of the spring in the portal wedge, not only effectively reduces the installation difficulty of the portal wedge of the SUPER+ type enclosure system, greatly improves the installation efficiency, but also can reduce the material waste during the compression process caused by the traditional method. For the installation of a large number of portal wedges on large LNG ships, the present invention can save a lot of working time and lay a solid foundation for rapid shipbuilding. Description of the Drawings

[0019] Figure 1 is the operation schematic diagram of the method for quickly installing the portal wedge of the SUPER+ type enclosure system based on the pressing tooling of the present invention;

[0020] Figure 2It is a schematic structural diagram of the portal wedge block in a method for quickly installing the SUPER+ type enclosure system portal wedge block based on a pressing tool of the present invention.

[0021] In the figure: 1. Main rod; 2. Reverse acting end; 3. Grasping end; 4. Movable end; 5. Reinforcing crossbeam; 6. Handle; 7. Metal panel; 8. Spring; 9. Wooden part; 10. Pressure plate. Specific implementation manner

[0022] The technical solution of the present invention will be further described below in conjunction with the specific implementation manner:

[0023] As Figure 1 shown, a method for quickly installing the SUPER+ type enclosure system portal wedge block based on a pressing tool, the pressing tool includes a handle 6, a main rod 1, a grasping end 3, a movable end 4, a reinforcing crossbeam 5 and a reverse acting end 2 connected in sequence from top to bottom. The main rod 1 is a threaded rod. The handle 6 is horizontally fixed at the upper end of the main rod 1. A threaded hole is provided in the center of the grasping end 3, and a thread matching the main rod 1 is provided in the threaded hole. A through hole is provided on the reinforcing crossbeam 5, and the main rod 1 passes through the threaded hole and the through hole. A enlarged member is provided on the main rod 1 at a position 10 mm from the lower end, and the enlarged member is located below the reinforcing crossbeam 5. The reverse acting end 2 includes two hooks, and the tops of the hooks are both hinged to the reinforcing crossbeam 5; the movable end 4 includes two left and right hinged parts, and the upper and lower ends of the hinged parts are respectively hinged to the grasping end 3 and the reinforcing crossbeam 5.

[0024] As Figure 2 shown, the portal wedge block is composed of a metal panel 7, two springs 8 and a wooden part 9 connected in sequence from top to bottom. Threaded holes and two bolt holes are provided on the metal panel 7. The threaded hole is located in the middle of the metal panel 7, and the two bolt holes are respectively located on both sides of the threaded hole. The threaded diameter of the main rod 1 is smaller than the diameter of the threaded hole in the middle of the metal panel 7 of the portal wedge block, and the diameter of the enlarged member is larger than the diameter of the threaded hole in the middle of the metal panel 7 of the portal wedge block, so that the enlarged member can abut against the metal panel 7. The central axes of the two springs 8 respectively coincide with the central axes of the two bolt holes on the metal panel 7, and the inner diameter of the spring 8 is larger than the diameter of the bolt hole, so that the bolt can pass through the middle of the spring 8. Such a setting can ensure that the metal panel 7 is aligned with the wooden part 9. The maximum extendable distance of the movable end 4 is greater than the compression amount of the spring 8.

[0025] Before installing the portal wedge block, after the installation of the adjacent secondary box is completed, the pressure plate 10 is first fixedly installed at the installation position of the portal wedge block. The size of the wooden part 9 in the portal wedge block matches the pressure plate 10. This is the preparatory work for installing the pressing tool.

[0026] The method for quickly installing the SUPER+ type enclosure system portal wedge block based on the pressing tool includes the following steps:

[0027] Step 1: Assemble the door-shaped wedge block in place and place it on the pressing plate 10. Hold the gripping end 3 of the pressing tool and vertically insert the main rod 1 into the threaded hole in the middle of the metal panel 7 of the door-shaped wedge block until the enlarged member on the main rod 1 is in tight contact with the metal panel 7. During the use of the pressing tool, through the direct action of the enlarged member on the main rod 1, the metal panel 7 is extruded to compress the spring 8.

[0028] Step 2: Spread the reverse action end 2 and place the two hooks of the reverse action end 2 on both sides of the door-shaped wedge block. Rotate the handle 6 clockwise until the metal panel 7 is in tight contact with the wooden part 9.

[0029] Step 3: Place the locking piece in the bolt hole on the metal panel 7 and screw in the bolt.

[0030] Step 4: Remove the pressing tool. Adjust the bolt to change the compression amount of the spring 8 so that the metal panel 7 is flush with the adjacent secondary box. Use a pen ruler or a small wooden strip to check the flatness of the metal panel 7 of the door-shaped wedge block and the adjacent secondary box to meet the specification requirements of the Super+ type containment system for building large LNG ships.

[0031] Step 5: Spot-weld the bolt and the locking piece in place.

[0032] This embodiment is only a further explanation of the present invention and not a limitation thereof. Those skilled in the art can make non-creative modifications to this embodiment as needed after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A method for quickly installing a portal wedge block of an enclosure system based on a pressing tooling, characterized in that, The pressing tooling includes a handle, a main rod, a holding end, a movable end, a reinforcing cross beam, and a reverse acting end, which are connected in sequence from top to bottom. A larger member is provided at a position near the lower end of the main rod. The U-shaped wedge is composed of a metal panel, two springs, and a wooden part, which are connected in sequence from top to bottom. The metal panel is provided with a threaded hole and two bolt holes. The threaded hole is located in the middle of the metal panel, and the two bolt holes are respectively located on both sides of the threaded hole. The main rod is a threaded rod. The handle is horizontally fixed at the upper end of the main rod. A threaded hole is provided in the center of the holding end, and a thread matching the main rod is provided in the threaded hole. A through hole is provided on the reinforcing cross beam, and the main rod passes through the threaded hole and the through hole. The threaded diameter of the main rod is smaller than the diameter of the threaded hole in the middle of the metal panel of the U-shaped wedge. The diameter of the larger member is larger than the diameter of the threaded hole in the middle of the metal panel of the U-shaped wedge. The larger member is located below the reinforcing cross beam. The method includes the following steps: Step 1: Assemble the U-shaped wedge in place. Hold the holding end of the pressing tooling, and vertically insert the main rod into the threaded hole in the middle of the metal panel of the U-shaped wedge until the larger member on the main rod abuts against the metal panel. Step 2: Spread the reverse acting end and place the two hooks of the reverse acting end on both sides of the U-shaped wedge. Rotate the handle clockwise until the metal panel abuts against the wooden part. Step 3: Place a locking piece in the bolt holes on the metal panel and screw in the bolts. Step 4: Remove the pressing tooling. Adjust the bolts to change the compression amount of the springs so that the metal panel is flush with the adjacent secondary box, and check the flatness of the metal panel of the U-shaped wedge and the adjacent secondary box. Step 5: Fix the bolts and the locking pieces.

2. The method for quickly installing a gantry wedge block of an enclosure system based on a pressing tooling according to claim 1, wherein Before installing the U-shaped wedge, after the installation of the adjacent secondary box is completed, first fixedly install a locking plate and a pressing plate at the installation position of the U-shaped wedge. The size of the wooden part in the U-shaped wedge matches the pressing plate.

3. The method for quickly installing the portal wedge block of the enclosure system based on the pressing tooling according to claim 1, characterized in that The larger member is provided on the main rod at a position 8 - 12 mm away from the lower end of the main rod.

4. The method for quickly installing the gantry wedge block of the enclosure system based on the pressing tooling according to claim 1, wherein The central axes of the two springs respectively coincide with the central axes of the two bolt holes on the metal panel, and the inner diameter of the spring is larger than the diameter of the bolt hole.

5. The method for quickly installing the gantry wedge block of the enclosure system based on the pressing tooling according to claim 1, wherein The maximum extendable distance of the movable end is greater than the compression amount of the spring.

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